Rail-joint.



.T. EBERDING.

RAIL JOINT.

APPLICATION FILED JULY 8, 1907. 98 1 ,740. Patented Aug. 24, 1909.

-%ll\ Y having a head which ments caused by JOHANNES EBEEDING, OFHANOVER, GERMANY.

RAIL-JOINT. v

Specification of Letters Patent.

Patented Aug. 24, 1909.

Application filed July 8, 1907. Serial 1N0. 382,773.

To all whom it may concern:

Be it known that I, Jor-IANNEs EBERDING, of Hanover, in the Province ofHanover, Kingdom of Prussia, German Empire, having invented certain newand useful Improvements in Rail-Joints, do hereby declare that thefollowing is a full, clear, and exact description of the same.

This invention refers to a rail joint, the distinguishing feature ofnovelty of which consists in the combination of a splice bar, extendsover the top -of the web of the rail, the head of the rail having beenremoved bottom plate which rests on the sleeper and supports aboutcentrally, the ends of the two rails, in such manner, that the splicebar and the bottom late form a body consisting of one piece. aforesaidelements into one splice .bar the result is obtained that the rail endslaid in such a splice "bar transmit all'th-e vertical movethe Wheelpressure directly to the splice bar, and such movements are vice versatransmitted directly from the.

splice barto the rail ends; any material bending of the supportin plate.even after the lapse of a lon time y reason of its resting on theadjoining sleepers below the joint is thus avoided. The

joint formed according to this invention furthermore ofl'ers theadvantage of giving a heretofore not attained perfect removal of theload from the rail ends, while the similar rail joints heretofore knownonly gave a one sided and therefore im erfect removal of the load.

' constructional example of my invention is illustrated in the annexedwhich Figure 1 is a vertical cross section of a rail joint according tomy invention on line .A of Fig. 2. Fig. 2 is a plan, Fig. 3 shows across section on line BB of Fig. 4.

Fig. 4 shows in a plan view-a modification of a rail jointaccording tomy invention. Fig. 5 is a perspective view of the splice bar accordingto my invention.

In order to laybare the webs i i of the two rail ends I) 6 two outs onlyare made through the head and web of each rail and according to theconstruction shown on the drawing, that is to say a vertical cut in thedirection of the line 1-1, and a horizontal cut in the direction of theline 22. Thecut 1'1 is shown slanting on the drawing, but it may in thisplace, and ay the combination of these'two.

drawings, in

also without departing from the invention in question be made in anyother straight or curved form as for instance at right angles to thelongitudinal axis of the rail, in which case the remaining rail endsabut against the head part e of the splice bar a and a space has to beprovided between the rail head end and the head part e, in order to givethe rail the possibility of an unhindered change in length contingent onchanges of temperature. The parts of the rail laid bare are now filledby the head part e of the splice bar a, which at the same time isprovided with a supporting bottom plate (1 which at the same timesupports the rail ends 0 0 according to the drawing in itsfull Width andrests on the ad joining sleepers below the joint.

The support of the rail ends by the bottom plate 01 is of course notrequired to the extent of the full width of the rail ends, but itsufficeswhen the same are supported es ecially in its middle part by thesupporting hottom plate (1, in order to. prevent a one-sided suport orremoval of the load on the rail ends. lhe supporting plate (1 may beprovided with flanges h whereby the splice bar a can be fixed to thesleepers at the joint without the use of special fixing or hook lates.In order to enable the splice bar to he made of rolled steel, theflanges h and ribs 9 may also be entirely omitted, as will be seen inthe cross section Fig. 8, and plan view Fig. 4, in which case the railends and splice bar'may suitably in usual manner be held to the sleeperm and kept from moving by means of hoo plates is (Fig. 3 and right sideof Fig. 4), or else without hook plates by means of lur'n s n (left sideof Fig. 4) or fixed directly on tlie sleeper by wood screws.

The splice bar a may for thepu ose of attaininggreater stiffness beprovi ed on the outer side with ribs 9 and if required also on the innerside with a strengthening partas for instance of awidthf shown inFig. 5,at which lace the thickness of the part of the splice ar between thehead part 6 and the supporting bottom plate d should'be about equal tothe thickness of the rail webs i 73 plus the thickness of the lateralpart of the splice bar a. By. such a stiffening of the splice bar bymeans of the ribs f and g the free head part e is at the same timesecured still more against a possible bending or yielding in course oftime, and also against a diminution of the distance between the lowerobject sought part of the head the supporting ottom strain at the upperside of the bared webs i i by the load rolling over the head part of thesplice bar is also permanently prevented so that thus no wear whateveron the rail webs at this place can take place.

The object of this invention is to prevent in the most perfect mannerpossible any load coming upon the rail ends, for which pur ose thesplice bar a with the head part e anr the supporting plate cl form onesingle strong body whereby the space, intended for reception of the railends, between the head part e and thesupporting bottom plate (1 is ofunchangeable height, so that the rail ends thereln, provided they arefitted exactly, are in fact without any loa-d coming on them, as thehead part, because of its rigid connection with the supporting bottomplate (1, transmits the blow coming on it to said plate di rectly. Atthe same time by the exact fit of the two rail ends between the headpart e and the supporting bottom plate (1 of the s lice bar the resultis obtained that the re ling load must pass over the splice bar withoutblows.

If in the laying of the rail joint the height of one or other of thewebs 'i"i"should happen to be greater than the distance between theunder side of the head part 6 of the splice bar and the supportingbottom plate (1 it may be easily reduced by a few strokes of a file. Butif the height of the web 'i or 'ishould be smaller than the saiddistance, so that there would be play between the surface 7' and theunder side of the head part e, then this may at once be remedied bylacing there thin steel strips or blades, the urability of which wouldbe lasting in view of I the circumstance that this place is not exposedto blows. Or the exact fitting of the webs i 'i in thes lice bar a mayin the latter case also be attained by making the pipper surface of thesup orting bottom plate s oping and by adjusta ly fitting between thesame and the under side of the rail ends a wedge shaped plate which isinclined on its under side in the same manner as the supporting bottomlate 11, in such manner that a erfect fit o the webs i, '5 in the splicebar and a secure bearing of the rail ends upon the wedge plate areobtained, thus always erfectly fulfilling the by t e present inventionends.

Claims.

1. A rail joint comprising a fish-plate having a head which extends overthe top of the web of the rail, the head of the rail having been removedin this lace, a bottom plate made integrally with the said fishplate,car rying about centrally the abutting ends of the rails, andresting on the sleepers, the remaining parts of the rail ends engagingwith the head and the bottom plate of the said integral fish plate, asecond fish plate of the usual shape, fish plate bolts passing throughthe web and the said fish plates and serving for their connection andmeans for connecting the rails to the sleepers.

2. A rail joint comprising a fish plate having a head provided with twosection-faces inclined toward each other and whichextends over the topof the rail web, the head of the rail having accordingly been removed inthis place, a bottom plate made integrally with the said fish plate,carrying about centrally the abutting ends of the rails and resting onthe sleepers, the remaining parts of the rail art a and the upper sideof namely the removal of load upon the rail plate (1, so that a i i endsengaging with the head and the bottom late of the said inte ral fishlate, a second sh plate of the usua shape, fish plate bolts passingthrough the web and the said fish plates and serving for theirconnection and means for connecting the rails to the slee ers.

3. A rail joint comprising a fish plate aving a head which extends overthe top of the web of the rail, the head of the rail having been removedin this place and the fish plate having a middle portion f projectingbea tween the rail ends, a bottom late made integrally with the saidfish p ate, carrying about centrally the abutting ends of the rails andresting on the sleepers, the remaining arts of the rail ends engagingwith the hea and the bottom late of the said integral fish plate, asecon fish plate of the usual shape, fish plate bolts assingthrough theweb and the said fish p ates and serving for their connection and meansfor connecting the rails to the sleepers.

Hanover,the 27th of June 1907 (Germany Goetheplatz '5.

' JOHANNES EBERDING'.

Witnesses:

FRANZ TIGGES, ,MAEY SABARTH;

